/*
* Copyright 2012 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.workbench.screens.guided.rule.client.widget;
import java.util.HashMap;
import java.util.Map;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Widget;
import org.drools.workbench.models.datamodel.imports.Import;
import org.drools.workbench.models.datamodel.rule.FactPattern;
import org.drools.workbench.models.datamodel.rule.FreeFormLine;
import org.drools.workbench.models.datamodel.rule.FromAccumulateCompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.FromCollectCompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.FromCompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.FromEntryPointFactPattern;
import org.drools.workbench.models.datamodel.rule.IPattern;
import org.drools.workbench.screens.guided.rule.client.editor.RuleModeller;
import org.drools.workbench.screens.guided.rule.client.resources.GuidedRuleEditorResources;
import org.gwtbootstrap3.client.ui.Button;
import org.gwtbootstrap3.client.ui.ListBox;
import org.kie.workbench.common.widgets.client.datamodel.AsyncPackageDataModelOracle;
import org.kie.workbench.common.widgets.client.resources.HumanReadable;
import org.kie.workbench.common.widgets.client.resources.i18n.HumanReadableConstants;
import org.uberfire.ext.widgets.common.client.common.ClickableLabel;
import com.google.gwt.user.client.ui.FlexTable;
import org.uberfire.ext.widgets.common.client.common.popups.FormStylePopup;
public class FromCollectCompositeFactPatternWidget extends FromCompositeFactPatternWidget {
private Map<String, String> extraLeftSidePatternFactTypes = null;
public FromCollectCompositeFactPatternWidget( RuleModeller modeller,
EventBus eventBus,
FromCollectCompositeFactPattern pattern ) {
super( modeller,
eventBus,
pattern );
}
public FromCollectCompositeFactPatternWidget( RuleModeller modeller,
EventBus eventBus,
FromCollectCompositeFactPattern pattern,
Boolean readOnly ) {
super( modeller,
eventBus,
pattern,
readOnly );
}
private void initExtraLeftSidePatternFactTypes() {
extraLeftSidePatternFactTypes = new HashMap<String, String>();
if ( modelImportsClass( "java.util.Collection" ) ) {
extraLeftSidePatternFactTypes.put( "Collection",
"Collection" );
}
if ( modelImportsClass( "java.util.List" ) ) {
extraLeftSidePatternFactTypes.put( "List",
"List" );
}
if ( modelImportsClass( "java.util.Set" ) ) {
extraLeftSidePatternFactTypes.put( "Set",
"Set" );
}
}
private boolean modelImportsClass( final String fullyQualifiedClassName ) {
for ( Import i : modeller.getModel().getImports().getImports() ) {
if ( i.getType().equals( fullyQualifiedClassName ) ) {
return true;
}
}
return false;
}
@Override
protected Widget getCompositeLabel() {
ClickHandler leftPatternclick = new ClickHandler() {
public void onClick( ClickEvent event ) {
Widget w = (Widget) event.getSource();
showFactTypeSelector( w );
}
};
ClickHandler rightPatternclick = new ClickHandler() {
public void onClick( ClickEvent event ) {
Widget w = (Widget) event.getSource();
showRightPatternSelector( w );
}
};
String lbl = "<div class='form-field'>" + HumanReadable.getCEDisplayName( "from collect" ) + "</div>";
FlexTable panel = new FlexTable();
int r = 0;
if ( pattern.getFactPattern() == null ) {
panel.setWidget( r++,
0,
new ClickableLabel( "<br> <font color='red'>" + GuidedRuleEditorResources.CONSTANTS.clickToAddPatterns() + "</font>",
leftPatternclick,
!this.readOnly ) );
}
panel.setWidget( r++,
0,
new HTML( lbl ) );
if ( this.getFromCollectPattern().getRightPattern() == null ) {
panel.setWidget( r++,
0,
new ClickableLabel( "<br> <font color='red'>" + GuidedRuleEditorResources.CONSTANTS.clickToAddPatterns() + "</font>",
rightPatternclick,
!this.readOnly ) );
} else {
IPattern rPattern = this.getFromCollectPattern().getRightPattern();
RuleModellerWidget patternWidget = null;
if ( rPattern instanceof FactPattern ) {
patternWidget = new FactPatternWidget( this.getModeller(),
this.getEventBus(),
rPattern,
true,
true,
this.readOnly );
} else if ( rPattern instanceof FromAccumulateCompositeFactPattern ) {
patternWidget = new FromAccumulateCompositeFactPatternWidget( this.getModeller(),
this.getEventBus(),
(FromAccumulateCompositeFactPattern) rPattern,
this.readOnly );
} else if ( rPattern instanceof FromCollectCompositeFactPattern ) {
patternWidget = new FromCollectCompositeFactPatternWidget( this.getModeller(),
this.getEventBus(),
(FromCollectCompositeFactPattern) rPattern,
this.readOnly );
} else if ( rPattern instanceof FromEntryPointFactPattern ) {
patternWidget = new FromEntryPointFactPatternWidget( this.getModeller(),
this.getEventBus(),
(FromEntryPointFactPattern) rPattern,
this.readOnly );
} else if ( rPattern instanceof FromCompositeFactPattern ) {
patternWidget = new FromCompositeFactPatternWidget( this.getModeller(),
this.getEventBus(),
(FromCompositeFactPattern) rPattern,
this.readOnly );
} else if ( rPattern instanceof FreeFormLine ) {
patternWidget = new FreeFormLineWidget( this.getModeller(),
this.getEventBus(),
(FreeFormLine) rPattern,
this.readOnly );
} else {
throw new IllegalArgumentException( "Unsupported pattern " + rPattern + " for right side of FROM COLLECT" );
}
patternWidget.addOnModifiedCommand( new Command() {
public void execute() {
setModified( true );
}
} );
panel.setWidget( r++,
0,
addRemoveButton( patternWidget,
new ClickHandler() {
public void onClick( ClickEvent event ) {
if ( Window.confirm( GuidedRuleEditorResources.CONSTANTS.RemoveThisBlockOfData() ) ) {
setModified( true );
getFromCollectPattern().setRightPattern( null );
getModeller().refreshWidget();
}
}
} ) );
}
return panel;
}
@Override
protected void showFactTypeSelector( final Widget w ) {
final FormStylePopup popup = new FormStylePopup( GuidedRuleEditorResources.CONSTANTS.NewFactPattern() );
popup.setTitle( GuidedRuleEditorResources.CONSTANTS.NewFactPattern() );
final ListBox box = new ListBox();
box.addItem( GuidedRuleEditorResources.CONSTANTS.Choose() );
for ( Map.Entry<String, String> entry : this.getExtraLeftSidePatternFactTypes().entrySet() ) {
box.addItem( entry.getKey(),
entry.getValue() );
}
//TODO: Add Facts that extends Collection
// box.addItem("...");
// box.addItem("...");
box.setSelectedIndex( 0 );
box.addChangeHandler( new ChangeHandler() {
public void onChange( ChangeEvent event ) {
pattern.setFactPattern( new FactPattern( box.getValue( box.getSelectedIndex() ) ) );
setModified( true );
getModeller().refreshWidget();
popup.hide();
}
} );
popup.addAttribute( GuidedRuleEditorResources.CONSTANTS.chooseFactType(),
box );
popup.show();
}
/**
* Pops up the fact selector.
*/
protected void showRightPatternSelector( final Widget w ) {
final ListBox box = new ListBox();
AsyncPackageDataModelOracle oracle = this.getModeller().getDataModelOracle();
String[] facts = oracle.getFactTypes();
box.addItem( GuidedRuleEditorResources.CONSTANTS.Choose() );
for ( int i = 0; i < facts.length; i++ ) {
box.addItem( facts[ i ] );
}
box.setSelectedIndex( 0 );
final FormStylePopup popup = new FormStylePopup( GuidedRuleEditorResources.CONSTANTS.NewFactPattern() );
popup.addAttribute( GuidedRuleEditorResources.CONSTANTS.chooseFactType(),
box );
box.addChangeHandler( new ChangeHandler() {
public void onChange( ChangeEvent event ) {
getFromCollectPattern().setRightPattern( new FactPattern( box.getItemText( box.getSelectedIndex() ) ) );
setModified( true );
getModeller().refreshWidget();
popup.hide();
}
} );
final Button freeFormDRLBtn = new Button( GuidedRuleEditorResources.CONSTANTS.FreeFormDrl() );
final Button fromBtn = new Button( HumanReadableConstants.INSTANCE.From() );
final Button fromAccumulateBtn = new Button( HumanReadableConstants.INSTANCE.FromAccumulate() );
final Button fromCollectBtn = new Button( HumanReadableConstants.INSTANCE.FromCollect() );
final Button fromEntryPointBtn = new Button( HumanReadableConstants.INSTANCE.FromEntryPoint() );
ClickHandler btnsClickHandler = new ClickHandler() {
public void onClick( ClickEvent event ) {
Widget sender = (Widget) event.getSource();
if ( sender == fromBtn ) {
getFromCollectPattern().setRightPattern( new FromCompositeFactPattern() );
} else if ( sender == fromAccumulateBtn ) {
getFromCollectPattern().setRightPattern( new FromAccumulateCompositeFactPattern() );
} else if ( sender == fromCollectBtn ) {
getFromCollectPattern().setRightPattern( new FromCollectCompositeFactPattern() );
} else if ( sender == freeFormDRLBtn ) {
getFromCollectPattern().setRightPattern( new FreeFormLine() );
} else if ( sender == fromEntryPointBtn ) {
getFromCollectPattern().setRightPattern( new FromEntryPointFactPattern() );
} else {
throw new IllegalArgumentException( "Unknown sender: " + sender );
}
setModified( true );
getModeller().refreshWidget();
popup.hide();
}
};
freeFormDRLBtn.addClickHandler( btnsClickHandler );
fromBtn.addClickHandler( btnsClickHandler );
fromAccumulateBtn.addClickHandler( btnsClickHandler );
fromCollectBtn.addClickHandler( btnsClickHandler );
fromEntryPointBtn.addClickHandler( btnsClickHandler );
popup.addAttribute( "",
freeFormDRLBtn );
popup.addAttribute( "",
fromBtn );
popup.addAttribute( "",
fromAccumulateBtn );
popup.addAttribute( "",
fromCollectBtn );
popup.addAttribute( "",
fromEntryPointBtn );
popup.show();
}
private FromCollectCompositeFactPattern getFromCollectPattern() {
return (FromCollectCompositeFactPattern) this.pattern;
}
@Override
protected void calculateReadOnly() {
if ( this.pattern.getFactPattern() != null ) {
String factType = this.pattern.getFactPattern().getFactType();
// We allow the use of Set, List or Collection, even when they are not added as imports
// Because of this, we also need to add them as known fact types
if ( getExtraLeftSidePatternFactTypes().values().contains( factType ) ) {
this.isFactTypeKnown = true;
} else {
this.isFactTypeKnown = this.getModeller().getDataModelOracle().isFactTypeRecognized( factType );
}
if ( this.pattern.getFactPattern() != null ) {
this.readOnly = !( this.getExtraLeftSidePatternFactTypes().containsValue( this.pattern.getFactPattern().getFactType() )
|| this.getModeller().getDataModelOracle().isFactTypeRecognized( this.pattern.getFactPattern().getFactType() ) );
}
}
}
private Map<String, String> getExtraLeftSidePatternFactTypes() {
if ( this.extraLeftSidePatternFactTypes == null ) {
this.initExtraLeftSidePatternFactTypes();
}
return this.extraLeftSidePatternFactTypes;
}
}